I dont know what is wrong here is my whole code and errors please hlep me!

Code:

turf/ground
icon='floor.dmi'
name="Ground"

turf/door
icon='door.dmi'
density=1
name="Wooden Door"

turf/door2
icon='door2.dmi'
density=1
name="Wooden Door"

turf/Door3
icon='door3.dmi'
density=1
name="Wooden Door"

mob/Hero
icon='player.dmi'
density=1

turf/StoneWall1
icon='wall.dmi'
density=1
name="Stone Wall"


turf/StoneWall2
icon='wall1.dmi'
density=1
name="Stone Wall"


turf/StoneWall3
icon='wall2.dmi'
density=1
name="Stone Wall"

turf/StoneWall4
icon='wall3.dmi'
density=1
name="Stone Wall"


turf/StoneWall5
icon='wallcorner.dmi'
density=1
name="Stone Wall"


turf/StoneWall6
icon='wallcorner1.dmi'
density=1
name="Stone Wall"


turf/StoneWall7
icon='wallcorner2.dmi'
density=1
name="Stone Wall"

turf/StoneWall8
icon='wallcorner3.dmi'
density=1
name="Stone Wall"

obj/Sword
icon='sword.dmi'
name="Slasher"



mob/var/obj/wielded

obj/Sword
name = "Slasher"
icon = 'Sword.dmi'

verb
Wield()
usr << "You wield [src]."
suffix =" (Wielded)"
usr.wielded = src

Remove()
usr << "You remove [src]."
suffix = null
usr.wielded = null

proc
move_to_ground()
suffix = null
usr.wielded = null






world
name = "Cinlair"
view = 8
mob = /mob/Hero




mob/verb/Greet()
world << "Hey Wut Up?!?"




obj/verb/proc
Get()
set src in oview(1)
usr << "You get [src]"
Move(usr)



obj/Click()
var/lag = 3 //how fast you do it
if(src.density)
walk_to(usr,src,1,lag)
return
else
var/obj/T
for(T in src)
if(T.density)
walk_to(usr,src,1,lag)
return
walk_to(usr,src,0,lag)

turf/Click()
var/lag = 3 //how fast you do it
if(src.density)
walk_to(usr,src,1,lag)
return
else
var/turf/O
for(O in src)
if(O.density)
walk_to(usr,src,1,lag)
return
var/obj/T
for(T in src)
if(T.density)
walk_to(usr,src,1,lag)
return
walk_to(usr,src,0,lag)


mob/Stat()
if (statpanel("Inventory")) stat("",usr.contents)

Errors:


Map.dmp:11:error: undefined type: /turf/Door
Map.dmp:11:error: unknown type
Map.dmp:12:error: undefined type: /turf/Door2
Map.dmp:12:error: unknown type